Taste fibres from anterior two third of tongue is carried by:
**Core Concept**
The **facial nerve (CN VII)** plays a crucial role in transmitting taste sensations from the anterior two-thirds of the tongue. This is a fundamental concept in **neuroanatomy** and **special senses**. The pathway for taste involves several cranial nerves, but the facial nerve is key for the anterior tongue.
**Why the Correct Answer is Right**
The correct answer involves understanding that the **chorda tympani**, a branch of the **facial nerve**, is responsible for carrying taste fibers from the anterior two-thirds of the tongue. This nerve transmits these sensations to the **nucleus solitarius** in the brainstem, which is the primary relay station for taste information.
**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because it does not specify the correct nerve or its branch involved in taste sensation from the anterior two-thirds of the tongue.
**Option B:** Incorrect as it is not directly related to the transmission of taste from the tongue.
**Option C:** Incorrect because, while it might be related to other sensory functions, it is not the correct pathway for taste from the anterior two-thirds of the tongue.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that the **facial nerve** is responsible for taste in the anterior two-thirds of the tongue, while the **glossopharyngeal nerve (CN IX)** handles the posterior one-third. This distinction is crucial for diagnosing and localizing lesions affecting taste.
**Correct Answer:** Correct Answer: A. Facial Nerve.